1/2x-4 - 3/8x =3/4x-8 - 1/3x. 速度谢谢了
两边乘以8x ( x -2 ) 得
4x - 3x+6=6x -(8x-16) /3
x + 6= 6x -(8x-16) /3
乘以3
3x + 18= 18x - 8x + 16
2 =7x
x = 2/ 7